Electromagnetic shielding mechanisms using soft magnetic stainless steel fiber enabled polyester textiles

Shyr, Tien-Wei; Shie, Jing-Wen

doi:10.1016/j.jmmm.2012.07.037

Cited by 67 publications

(31 citation statements)

References 22 publications

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“…This mechanism requires the presence of large surface areas (e.g., a porous or foam material) or interfacial areas (e.g., a composite material containing fillers of large surface area) in the shield, the loss related to multiple reflections can be neglected when the distance between the reflecting surface and interfaces is quite large compared with the skin depth [22]. Practically, the multiple reflections were negligible when the absorption is greater than 15 dB [4], [14]. Therefore, it was assumed that the effect of multiple reflections on the SE can be neglected for our considered composite thickness [18].…”

Section: Electromagnetic Se Measurementmentioning

confidence: 99%

“…9(a), (b), and (c), respectively, as the SE of these three composites were higher than 15 dB in 300 MHz to 1.5 GHz, which are depicted in Fig. 7, the multiple reflection (B) were neglected [14]. Where R = (|S 11 | 2 ) × 100% and A = (1−|S 11 | 2 −|S 21 | 2 ) × 100% [18].…”

Section: Electromagnetic Se Measurementmentioning

confidence: 99%

“…316 L SSF was produced by cluster drawing process, and the specific diameter of a single SSF can be as fine as 1 to 40 μm [14]. SSF possesses metallic appearance and bright finish.…”

mentioning

confidence: 99%

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The Electromagnetic Shielding Effectiveness of a Low-Cost and Transparent Stainless Steel Fiber/Silicone Resin Composite

Jin

Zhang

et al. 2014

IEEE Trans. Electromagn. Compat.

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A low-cost and transparent stainless steel fiber (SSF)/silicone resin composite was prepared by blending shortcut SSF with silicone resins. The SSF was homogeneously dispersed in resins at submicrometer scales and formed cross-linking structures. The visible light transmittance (VLT) and shielding effectiveness (SE) of composite in the frequency range of 300 MHz-1.5 GHz were investigated, and the result showed that the VLT was 70%, while the SE was 15-26 dB and the VLT was 67%, while the SE was 27-36 dB at 1.00 wt.% and 1.25 wt.% SSF concentrations, respectively. The result suggested that SSF/silicone resin composite may be useful for electromagnetic interface shielding application, especially when there is a visibility requirement. The shielding mechanism was investigated by quantitatively studying the absorbed and reflected energy to the total SE, and the result revealed that the dominant shielding mechanism of SSF/silicone resin composite was reflection loss.

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Section: Electromagnetic Se Measurementmentioning

confidence: 99%

Section: Electromagnetic Se Measurementmentioning

confidence: 99%

See 1 more Smart Citation

The Electromagnetic Shielding Effectiveness of a Low-Cost and Transparent Stainless Steel Fiber/Silicone Resin Composite

Jin

Zhang

et al. 2014

IEEE Trans. Electromagn. Compat.

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“…Absorption loss is proportional to the shield thickness and is a function of relative conductivity and permeability. Soft magnetic alloy powder and fiber are joined in polymer matrix with good shielding effectiveness, showing an absorption dominant mechanism [10,11]. The third mechanism for shielding is multiple reflections, taking place at surfaces or interfaces within the shield.…”

Section: Introductionmentioning

confidence: 99%

A novel structure of Ferro-Aluminum based sandwich composite for magnetic and electromagnetic interference shielding

Zhang

Luo

et al. 2016

Materials & Design

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“…Recently, conductive polymers have been introduced to replace metallic materials. In recent years, many new shielding materials have been tested: 1) polystyrene particles coated with copper by magnetron sputtering [9]; 2) polypropylene mixed glass fibers filled with copper wires [10]; 3) copper wire, polyamide filament, stainless steel wire [11]; 4) fly ash particulate produced aluminum matrix composites [12]; 5) copper wire and polyamide filaments wrapped with polypropylene filaments [13]; 6) multiwalled carbon nanotube filled polyacrylate composite films [14]; 7) glass fabric-epoxy composites containing conductive multi-walled carbon nanotubes [15]; 8) soft magnetic iron, aluminum, silicon alloy polymer composites [16]; 9) soft magnetic stainless steel fiber enabled polyester textiles [17], 10) polyaniline-coated transparent thin films [18], 11) carbon filling cement materials and metal filling cement composites [19].…”

Section: Introductionmentioning

confidence: 99%

The Shielding of Inbound Radiofrequency Electromagnetic Fields at Workplaces

Koppel

Ahonen

2014

Safety of Technogenic Environment

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Abstract. The emergence of new technologies and increased use of wireless voice and data transmissions has increased the human exposure to the radiofrequency (RF) electromagnetic fields (EMFs). Effective reduction measures of these fields have become more relevant in risk management at workplaces. Not only occupational health, but also counter-espionage and low electromagnetic interference are important arguments for RF EMF mitigation. This study investigates the most commonly used mitigation materials and methods of RF EMFs. The materials investigated in this study included: a graphite based paint; a wire netting; a foil paper; a metalized fabric; a transparent conductive film and other solutions. The study undertook two kinds of measurements: 1) a semi-controlled environment was created to test the mitigation materials/methods under equal conditions, 2) measurements were conducted before and after the implementation of the intervention measures in the actual living and working environments. The results revealed great differences in various mitigation materials and methods: under semicontrolled conditions the best shielding capability was achieved by metallized fabric, followed by iron wire netting and foil paper. Iron bars produced moderate screening whereas graphite paint and metallic frame proved to have little effect.

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Electromagnetic shielding mechanisms using soft magnetic stainless steel fiber enabled polyester textiles

Cited by 67 publications

References 22 publications

The Electromagnetic Shielding Effectiveness of a Low-Cost and Transparent Stainless Steel Fiber/Silicone Resin Composite

The Electromagnetic Shielding Effectiveness of a Low-Cost and Transparent Stainless Steel Fiber/Silicone Resin Composite

A novel structure of Ferro-Aluminum based sandwich composite for magnetic and electromagnetic interference shielding

The Shielding of Inbound Radiofrequency Electromagnetic Fields at Workplaces

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